Abstract
The author has sought to inquire experimentally into the mechanical properties, such as tension. creep and recovery, of terylene fibers, and to compare them with the mechanical properities of other fibers which the author has previously looked into.
The tensile properties of terylene fibers are also quantitatively represented by the seven tensile characteristic values used in the author's previous report[1] to analyze the tensile behaviors of some other textile fibers.
The behaviors of creep and recovery in terylene fibers nearly follow the general creep and recovery formulas given in his previous report.[2] Therefore, the mechanical properties of terylene fibers may be represented quantitatively by some constants in those formulas. The effects of temperature and humidity on these properties are experimentally discussed in this article.
The characteristics of the mechanical properties of terylene fibers, compared with those of eight other fibers-cotton, wool, viscose rayon, tirecord rayon, bemberg, acetate, vinylon and nylon-are as follows: Tenacity is of the highest class like the tenacity of nylon fibers: The time rate of creep elongation is very small like that of cotton; the recovery rate of elongation is the highest; and yet elongation is moderate; and susceptibility to the effects humidity is very slight.
